Alternative splicing produces pre‑mRNAs of different lengths from the same mRNA mRNAs of different lengths from the same amino acid sequences mRNAs of different lengths from the same pre‑mRNA pre‑mRNAs of different lengths from the same DNA genes of different lengths from the same DNA

Explanation:

i) Alternative splicing is the process of RNA splicing in which different mRNA are produced from the same pre-mRNA.

ii) In alternative splicing, different composition of exons are added and different composition of introns are removed.

iii) By alternative splicing, it produce different mRNA and from this different mRNA there may be different protein from the same gene.

iv) alternative splicing helps in expression of same DNA sequence in different proteins.

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explanation:

thinking it would be physical characteristics